Prostate Cancer Flashcards
Normal size of prostate gland
walnut
make fluid contained in the seminal fluid which nourishes sperm
prostate gland
Zone that surrounds proximal urethra
transition
Zone that surround ejaculatory ducts
central
Zone that surround distal urethra and where most BPH occurs
peripheral
Prognosis of prostate cancer
5 yr survival nearly 100%
Racial group more often affected by prostate cancer
African Americans
Presenting symptoms include increased urinary frequency, painful micturition, decreased stream, hematuria, painful ejaculation
prostate cancer
At what level is the PSA when prostate cancer develops
usually above 4
Factors that increase PSA
BPH, age, prostatitis
Relates PSA level to size of prostate
PSA density
Change in PSA over time
PSA velocity
low number suggests cancer, since more free PSA from normal prostate is degradated
Free PSA/Total PSA
Describe the levels of the Gleason scores
2-4 Best (cells still look normal). 5-7 Intermediate risk. 8-10 Worse (cells have few features of a normal cell and are likely to be aggressive)
Therapy for T1a patient
if greater than 60 follow with no therapy
Therapy for a T1b, T1c, T2 patient
radical prostatectomy or high dose radiation
Therapy for a T3 (stage 3) patient
radiation
How long is the average doubling time of a prostate tumor?
slow, 2-4 yrs
Nerve sparing procedure. allows neurovascular bundles on either side of prostate that control erectile fxn. Remaining Urethra is sewn to bladder neck over a catheter
Radical Retropubic Prostatectomy (RRP)
Whole prostate can be examined histologically.
Surgeon has access to lymph nodes to test if prostate cancer cells have left the tumor. Surgical margin can be examined
Radical Retropubic Prostatectomy (RRP)
Cannot access regional lymph nodes. Slight increase in risk of rectal injury and associated complications
Perineal Prostatectomy
Radioactive seed implants into prostate. ED less common side effect
brachytherapy
Maximize damage to the prostate and minimize damage to surrounding tissues. ED less common side effect
External Beam Radiation
initial therapy for locally advanced or metastatic disease
hormonal therapy
What hormones do prostate cells and prostate cancer cells depend on for survival and growth?
androgens
may be performed prior to prostatectomy or radiation in order to shrink the tumor. standard method of treating advanced and metastatic prostate cancer
androgen ablation therapy (ie hormone therapy)
surgical removal of the testicles.
orchiectomy (castration)
Name the LHRH analogs
Goserelin (Zolodex)
Leuprolide (Lupron)
Name the antiandrogens
Flutamide, bicalutamide, nilutamide
Primary value when starting LHRH to limit the flare reaction
antiandrogens
Consequences of this treatment include: impotence, decreased libido, hot flashes, weight gain, fatigue, loss of bone/muscle mass
androgen removal
Treatment of hormone refractory metastatic disease
Docetaxel (every 3 wks), prednisone, and bisphosphonates
Complications of anti-adrogen therapy
diarrhea and hepatic dysfxn
5-alpha reductase inhibitor, blocks intracellular conversion of testosterone to dihydrotestosterone
Finasteride